OWS SERIES - 25 WATT
DESCRIPTION
OWS single output DC/DC converters provide up to 25
Watts of output power in an industry-standard package
and footprint. The OWS features excellent efficiency,
six-sided shielding, and a fixed switching frequency. With
85°C case operation, the OWS is especially suited to
telecom, networking, and industrial applications. These
units are fully compatible with production board washing
processes.
FEATURES
• Industry Standard Package
• 12V and 48V Input
Versions
• 25W Output
• 85°C Case Operation
• Trim and Enable
Pins
• Fixed Frequency
• 500V Isolation
• Wide Input Range
Efficiency vs. Load (12V Input)
95
90
85
80
TECHNICAL SPECIFICATIONS
Input
Voltage Range
12 VDC Nominal
48 VDC Nominal
Input Reverse Voltage Protection
Input Ripple Current
Reverse Input Current
10 - 20 VDC
20 - 60 VDC
Shunt Diode
20% Iin Max.
100% Iin Max.
75
EFF. OWS1205
70
65
60
55
10
20
30
40
50
60
70
80
90
100
LOAD %
EFF. OWS1212
EFF. OWS1215
Output
Setpoint Accuracy
Line Regulation Vin Min. - Vin Max., Iout Rated
Load Regulation Iout Min. - Iout Max., Vin Nom.
Minimum Output Current
Dynamic Regulation, Loadstep
Pk Deviation
Settling Time
Voltage Trim Range
Short Circuit / Overcurrent Protection
Current Limit Threshold Range, % of Iout Rated
General
Remote Shutdown
Remote Shutdown Reference
Switching Frequency
Isolation
Input - Output
Temperature Coefficient
Case Temperature
Operating Range
Storage Range
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 min. each
MTBF† (Bellcore TR-NWT-000332)
Safety
Weight (Approx.)
REV. 12/01
Positive
Vin Negative
300 kHz
500 VDC
0.02%/°C
-25 To +85°C1
-40 To +125°C
95%
5 g, 10 - 55 Hz
1.8 X 106 hrs
UL1950, CSA22.2-950, EN60950
1.9 oz
Iin ±1%
±1% Vout
±1% Vout
10 %
25% Iout
1% Vout
500
µs
±10%
Continuous
110% - 130%
95
90
85
80
75
70
65
60
55
10
20
Efficiency vs. Load (48V Input)
.
EFF. OWS4805
EFF. OWS4812
30
40
50
60
70
80
90
100
LOAD %
Notes
1 Industrial temperature range of -40 to +85°C available; add suffix -I to P/N.
† MTBF predictions may vary slightly from model to model.
Specifications typically at 25°C, normal line, and full load, unless otherwise
stated.
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.
Safety: Agency approvals may vary from model to model. Please consult
factory for specific model information.
1
OPTIONS
When ordering equipment options, use the following suffix information. Select the option(s) that you prefer
and add them to the model number. Example ordering options are located below the options table.
OPTION
Negative Logic
Lucent-Compatible Trim
Terminal Strip
Trim
Enable
Trim and Enable
SUFFIX
N
T
TS
1
2
3
APPLICABLE SERIES
HAS, HBD, HBS, HES, HLS, HLD, LES,
QBS, QES, QLS, TES, TQD
HAS, HBD, HBS, HES, HLS, QBS, QES,
QLS
XWS, XWD, XWT
IAS, LES
IAD, IAS, LES, SMS
IAS, LES
REMARKS
TTL "Low" Turns Module ON
TTL "High" Turns Module OFF
Pin Length and Heatsink Options
0.110" (2.8mm) Pin Length
0.150" (3.8mm) Pin Length
0.24" (6.1mm) Horizontal Heatsink
0.24" (6.1mm) Vertical Heatsink
0.45" (11.4mm) Horizontal Heatsink
0.45" (11.4mm) Vertical Heatsink
0.95" (24.1mm) Horizontal Heatsink
0.95" (24.1mm) Vertical Heatsink
8
9
1H
1V
2H
2V
3H
3V
All Leaded Models
All Leaded Models
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
Standard Pin Length is 0.180" (4.6mm)
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Example Options:
HBS050ZG-ANT3V = HBS050ZG-A with negative logic, Lucent-compatible trim, and 0.95” vertical heatsink.
LES015YJ-3N = LES015YJ with optional trim and enable, negative logic.
QBS066ZG-AT8 = QBS066ZG-A with Lucent-compatible trim and 0.110” pin length.
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not authorized for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective divisional President
of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date
manufactured. Specifications are subject to change without notice.
REV. AUG 16, 2002
3
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